CSEMP assessment of CB153 in biota at Tynemouth
Statistical analysis
Trend assessment
Analysis of variance
Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) | |
---|---|---|---|---|---|---|---|---|
mean | 1 | 21.60 | 23.60 | -8.80 | 17.60 | |||
linear | 2 | 23.57 | 28.37 | -8.78 | 17.57 | 0.029 | 1 | 0.8653 |
smooth (df = 2) | 3 | 24.32 | 34.32 | -8.16 | 16.32 | 1.251 | 1 | 0.2634 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2008 | 2018 | -0.2138 | -0.3340 | -0.1202 | 0.7074 | -0.170 | 0.8699 |
last 20 years | 2008 | 2018 | -0.2138 | -0.3340 | -0.1202 | 0.7074 | -0.170 | 0.8699 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 0.716 | 0.098 | -1.991 | 0.462 | -4.305 | 0.9982 |
EAC | 0.716 | 20.605 | 3.360 | 0.462 | 7.265 | <0.0001 |
Raw data with supporting information
Raw data with assessment
Assessment plot
Chlorobiphenyls data
Chlorobiphenyls assessment
Related pages
- Clean Seas Environment Monitoring Programme (CSEMP) accessment viewer tool
- Assessment methodology for chlorobiphenyls in biota
- Accessment criteria for chlorobiphenyls in biota
Media : Biota (Blue mussel soft body)
Station : Forth_NorthBerwickBarnsN_sh01 (Tynemouth)
Determinand : CB153
Units : μg kg-1 wet weight
Data extraction : 30 April 2020
Station : Forth_NorthBerwickBarnsN_sh01 (Tynemouth)
Determinand : CB153
Units : μg kg-1 wet weight
Data extraction : 30 April 2020